I-silicon carbide ye-Sintered yinto ebalulekileyo ye-ceramic, esetyenziswa ngokubanzi kubushushu obuphezulu, uxinzelelo oluphezulu kunye namasimi anamandla aphezulu. I-reactive sintering ye-SIC linyathelo eliphambili ekulungiseleleni imathiriyeli ye-SIC edibeneyo. Olona lawulo lulungileyo lwe-sintering reaction ye-SIC lunokusinceda ukulawula imeko yokusabela kunye nokuphucula umgangatho wemveliso. Eyona ndlela yokulawula i-sintered silicon carbide reaction ixoxwa kweli phepha.
1. Ukulungiswa kokusabela sintering iimeko SIC
Iimeko zokusabela ziyimilinganiselo ebalulekileyo ye-sintered silicon carbide reaction, kubandakanywa ubushushu bokusabela, uxinzelelo lokusabela, umlinganiselo we-reactant mass kunye nexesha lokuphendula. Xa ulungiselela iimeko zokusabela, kuyimfuneko ukulungelelanisa ngokweemfuno ezithile zesicelo kunye nendlela yokusabela.
(1) Ubushushu bokusabela: Iqondo lobushushu lokusabela yenye yezinto eziphambili ezichaphazela isantya sokusabela kunye nomgangatho wemveliso. Kuluhlu oluthile, okukhona ubushushu bokusabela buphezulu, isantya sokusabela ngokukhawuleza, kokukhona umgangatho wemveliso uphezulu. Nangona kunjalo, iqondo lokushisa eliphezulu kakhulu liya kukhokelela ekwandeni kwee-pores kunye nokuqhekeka kwimveliso, echaphazela umgangatho wemveliso.
(2) Uxinzelelo lwe-reaction: Uxinzelelo lwe-reaction lunempembelelo kwisantya sokusabela kunye nokuxinana kwemveliso. Ngaphakathi kuluhlu oluthile, ukuphakama koxinzelelo lokusabela, ngokukhawuleza isantya sokusabela kunye nokuphezulu koxinano lwemveliso. Nangona kunjalo, uxinzelelo oluphezulu kakhulu lokuphendula kunokukhokelela kwiipores ezininzi kunye neentanda kwimveliso.
(3) reactant mass ratio: reactant mass ratio yenye into ebalulekileyo echaphazela isantya reaction kunye nomgangatho wemveliso. Xa i-carbon ukuya kwi-silicon mass ratio ifanelekile, izinga lokuphendula kunye nobunzima bemveliso. Ukuba i-reactant mass ratio ayifanelekanga, iya kuchaphazela izinga lokusabela kunye nobunzima bemveliso.
(4) Ixesha lokuphendula: Ixesha lokuphendula yenye yezinto ezichaphazela isantya sokuphendula kunye nomgangatho wemveliso. Kuluhlu oluthile, ixesha lokusabela lide, isantya sokuphendula siyacotha kwaye umgangatho wemveliso uphezulu. Nangona kunjalo, ixesha elide lokuphendula liya kukhokelela ekwandeni kweepores kunye nokuqhekeka kwimveliso, echaphazela umgangatho wemveliso.
2. Ukulawulwa kwenkqubo ye-reactive sintering silicon carbide
Kwinkqubo ye-sintering ye-SIC reaction, kuyimfuneko ukulawula inkqubo yokusabela. Injongo yolawulo kukuqinisekisa ukuzinza kokusabela kunye nokuhambelana komgangatho wemveliso. Ulawulo lwenkqubo yokusabela lubandakanya ulawulo lobushushu, ulawulo loxinzelelo, ulawulo lwe-atmosfera kunye nolawulo lomgangatho wokusabela.
(1) Ulawulo lobushushu: Ulawulo lobushushu yenye yezinto ezibalulekileyo zolawulo lwenkqubo yokusabela. Ulawulo lobushushu Ubushushu bokusabela kufuneka ilawulwe ngokuchanekileyo kangangoko kunokwenzeka ukuqinisekisa uzinzo lwenkqubo yokusabela kunye nomgangatho wemveliso ongaguqukiyo. Kwimveliso yanamhlanje, inkqubo yolawulo lwekhompyuter idla ngokusetyenziswa ukulawula ngokuchanekileyo ubushushu bokusabela.
(2) Ulawulo loxinzelelo: Ulawulo loxinzelelo lolunye umba obalulekileyo wolawulo lwenkqubo yokusabela. Ngokulawula uxinzelelo lokusabela, ukuzinza kwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwimveliso yanamhlanje, inkqubo yolawulo lwekhompyuter idla ngokusetyenziswa ukulawula ngokuchanekileyo uxinzelelo lokusabela.
(3) Ulawulo lwe-Atmosphere: Ulawulo lwe-atmosphere lubhekiselele ekusebenziseni umoya othile (njengomoya ongasebenziyo) kwinkqubo yokusabela ukulawula inkqubo yokusabela. Ngokulawula umoya, ukuzinza kwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwimveliso yanamhlanje, inkqubo yokulawula ikhompyutha idla ngokusetyenziswa ukulawula umoya.
(4) Ulawulo lomgangatho we-reactant: Ukulawulwa kwekhwalithi ye-reactant yenye yeenkalo ezibalulekileyo zokuqinisekisa ukuzinza kwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso. Ngokulawula umgangatho wee-reactants, ukuzinza kwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwimveliso yanamhlanje, inkqubo yokulawula ikhompyuter idla ngokusetyenziswa ukulawula umgangatho we-reactants.
Ulawulo olululo lwe-reactive sintering SIC linyathelo eliphambili lokulungiselela umgangatho ophezulu we-sintered we-SIC imathiriyeli. Ngokulungisa iimeko zokusabela, ukulawula inkqubo yokusabela kunye nokubeka iliso kwiimveliso zokusabela, ukuzinza kwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwisicelo esisebenzayo, ukusabela kwe-silicon carbide ye-sintered kufuneka ihlengahlengiswe ngokweemeko ezithile zesicelo ukuhlangabezana neemfuno ezahlukeneyo zesicelo.
Ixesha lokuposa: Jun-05-2023